Typewriting-machine



W. E BARNARD.

TYPEWRITING MACHINE.

APPLICATION FILED NOV. 7, 191a.

Patented Aug. 2, 1921.

2 SHEETSSHEET l.

//2ve/7/o/1- y Affor ey W. E. BARNARD.

TYPEWRITING MACHINE.

APPLICATION HLED NOV. 7, 1918.

Patented'Aug. 2, 1921.

2 SHEETSSHEET 2.

Affom showing the finger piece moved away from Stamford vention.

UNITED STATES PATENT OFFICE.

WALTER E. BARNARD, OF STAMFORD, CONNECTICUT,ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DEL-AHARE.

Application filed November 7, 1918.

T 0 all whom it may concern:

Be it known that I, VALTER BARNARD, a citizen of the United States, residing in in the county of Fairfield and State of (lonnecticut, have invented certain new and useful Improvements in Typewriting-Machines, of which the following is a specification.

This invention relates to typewriting machines, and more especially to the controlling of the ribbon mechanism in such achines. The invention is herein described as applied to an Underwood typewriting machine having aribbon mechanism adapted to write in either of two colors, and also adapted to be made ineffective to permit stencils to be out by the typewriter.

It is a feature of my improvements to be able to set the ribbon mechanism to'one position or another at will, and. to provide means which, when set to a certain position will remain in that position, and if temporaril'y'move'd to another position, for typing characters in a different color, or accidentally, as in cleaning the machine, will automatically return to the set position. The invention is herein shown as applied to the usual bichrome mechanism of the Underwood typewriting machine, whichis so constructed that it may also be used for stencil cutting, and connections are such, as herein disclosed, thattl1eiingenpiece which effects the setting may be positively set to the desired position, and yet have many of the advantages which would result from a yielding connection between the finger-piece and the ribbon mechanism.

Other features and advantages will hereinafter appear.

1 In the accompanying drawings,

'Figure 1 is a sectional side view, showing part of an Underwoodtypewriting machine having the present invention applied thereto.

Fig. '2 is a skeleton perspective view, showing most of the parts of the present in- Fig. 3 is a dissected perspective view, showingthe settable finger-piece and some cooperating parts.

Fig. 4 is a face view from the rear of the parts shown in Fig. 3 set for writing black.

Fig. 5 is a view similar to Fig. 3, but

Specification of Letters Patent.

'sult that the vibr Patented A11 2, 1921.

Serial No. 261,4;47.

the position of Fig. l against the tension of the spring, which tends to move it to the position. of Fig. 4:.

Fig. 6 is a view similar to Fig. i, but showing the parts set for red printing.

F 7 is a similar view, showing the parts set for stencilizing.

In the Underwood typewriting machine, character keys 1, which are mounted on the front ends of key-levers 2, when depressed, carry down bell-cranks to cause type-bars 4 to swing upwardly and rearwardly, so that types 5 on the latter will irint against the front side of the platen 6 through the black stripe T, or the red stripe 8, of the usual ribbon. The ribbon normally stands below the printing point, and is raised tothe printing point at the actuation of a character key, by means of a universal bar 9, which is adapted to be struck by heels 10 on the type-bars as the type-bars approach the platen, with the result that the universal bar is carried rearwardly and lifts the usual ribbon carrier 11.

I To enable the ribbon carrier to be thus lifted, the universal bar is provided with a flat portion 12, on which is mounted a housing l3 adapted to be shifted to the right or.

left, so that either the wall H or the wall 15 of the housing will one" e the proper pin 16. When either wall it the housing engages its pin 16, it carries the pin rearwardly at the rearward movement of the universal bar when the type-bar rises, thus carry ing rearwardly the upper end 1'? of a pivoted ribbon vibrator 18 on which the pins 16 are fast, and which is pivotally attached to the ribbon carrier 11, with the retor 18 will lift the ribbon to an extent depending on which wall of the housing engages a pin To effect this, the pins set at different distances v n the pivot ls about which the vibrator turns, so that when the wall 15 engages its pin 16, it will give the vibrator 18 a small throw, because its pin 1.6 is the more distant from the pivot 19 than is the pin 16 which is adapted to be engaged by the wall 14-. The construction is such that the housing 13 may occupy anintermediatc position, which position it engages neither of the pins 16, and thus moves idly backward and forward with the universal bar.

in order to enable the typist to shift the housing 13 on. the universal. bar, the housing I is pivotally connected lay means of a link terminates in a finger-piece 24;. Therocking of the rock shaft 22 will'shift the housing to arock arm 21 fast on a rock shaft 22, exten'ohng through the front of the machine frame or casing 23, at, which point the shaft shaft, because there is fast on the shaft 22 a fork 29 engaging a pin 30 fast on one of the 'usual ribbon spool brackets 31, and since this V the plate It will'he observed pin 30 is to one side of the center of the shaft 22, moving the shaft up and down will rock the shaft around the pin 30 as a pivot, therebyrocking the rock arm 21 and sliding the housing 13 along the universal bar 9.

'F or the purpose of yieldingly holding the finger-piece 24 set in any desired position, the enlarged hub 32 of the finger-piece forms a releasable locking; catch which is adapted to be set in any one of a plurality of openings 33, 34; or 35 in a plate or keeperSGpivotedto the bracket 28 by a suitable screw 37; To enable the finger-piece 24 to be shifted from any one of the openings 33, 34, to any other one, the openings merge into each other by an opening 38 large enough to pass the shaft 22, but smaller than the hub 32. Thus, the finger-piece 245 can be pulled forwardly out of any one of the openings 33, 34-, 35 until its hub is clear of said openings, and then set in any one of the other openings.

The plate 36 is mounted on the pivot 87 so that it may shift. It is, however, normally held in its uppermost position by means of a spring 39 which is anchored in a lug 1.0 of the bracket 28, and draws upon a lug :1 on

all

. result of this mounting the plate 36 permits the fingeirqrnece 2 i to be permanently se in any one of the openings33 or 3%, and ye to be moved freely against the tension of the spring 39 along the pathformcd' by said openings. In order to hold the finger-piece hub 32 in an opening when once set there, the shaft 22 is normallypressed rearwardly by a spring 42, which bears against the hub 43 of the rock arm 21 and against the bracket 25. V i v In order to limit the throw of the plate 36, it is provided with'a lug' l i forming an extension thereon. and slidable in an arcuate opening 45' in the bracket 28. In order to correspondingly limit the throw of the shaft 22,1t passes through the slot or arcuate opening 27 in the bracket 28. In order to prevent the plate 36 from binding against the bracket 28 it may be spacedtherefroml at the pivot by a washer M, and in order to prevent it belng pushed rearwardly, thereby binding against the hub 32, the lug n may comprise an extension 48 p'assingthr'ough the opening 45 and overlying the outer face of the bracket 28, thus limiting the movement of the plate 36 relatively to the bracket 28. r

It will be noted that when the finger-piece 24 is set at black writing: position, as seen at Fig. 4, it may be pressed down to the point seen in Fig. 5, in which position it will shift the housing 13" so that the wall l iwill engage its pin 16, but the instant pressure is released, the finger-piece 2 iwi-ll be drawn back with the plate to the Fig. i position. If, however, the finger-piece is set at the i? 6 position, it will have very little movenient, because the lug ia limits itsmotion in one direction, while the end of the slot 27 gainst which the hub 32 bears limits its motion 1n the other direction. If t is desired to dostenc1l1ng,.the finger-piece 24 may be set the Fig. 7'position, where it engages the opening 34, in which position neither the wall 14 nor the wall 15 of the housing 13 enpressure is released, the ribbon'wi'll be auto matically returned tothe position for typing in black. 7 V v c Owing to the length of the link 20' and to the length of the shaft 22, as well as to the flexibilityjof the connections of the hill-12G, the rotation of the shaft 22 by twisting it around the opening in'the bracket 25*does not interfere with the proper operation of the various parts.

\7ar1at1ons may be resorted to Within the scope of the invention, EtllClPQltlODS of the improvements may be used without others.

Having thus described my invention, I claim:

1. In typewriting machine having poly chrome printing means, the combination with V a hnk adapted to varythe color, of ashaft for operating said link, a-finger-piece for shifting said shaft transversely of its 1 axis, means for supporting the shaft to cause said shifting to rotate it, and means for detaining' the shaft in its rotated position.

2. In a typewriting machine having poly:

chrome'printing means, the combination with a link adapted to vary the color, of a shaft, a finger-piece for shifting said shaft transversely of its axis, means for supporting the shaft to cause said shifting to rotate it, a holding device adapted to hold the shaft in r on said shar nections permitting the any one of a plurality of positions, and confinger-piece to be moved to shift the shaft to any of its positions.

8. In a typewriting machine having polychrome printing means, the combination with a link adapted tovary the color, of a shaft shiftable transversely of its axis, a plate" form ng a holding device for the shaft adapted to hold the shaft in any one of a plurality of positions, a mounting for said plate permitting it to be moved, and a spring normally detaining the plate in one position.

4i. In a typewriting machine having polychrome printing means, the combination with a link adapted to vary the color, of a shaft having an endwise movement and.

adapted to be rocked to shift the color-controlling link, a spring normally holding said shaft at one end of its endwise movement, a hub on said shaft, and a series of openings in which said hub is adapted to be inserted to variably position the shaft to determine the nature of the color printing.

5. In a typewriting machine having polychrome printing means, the combination with a link adapted to vary the color, of a shaft having an endwise movement andadapted to berocked to shift the color-controlling link, a spring normally holding said shaft at one end of its endwise movement, a hub on said shaft,a series of openings in which said hub is adapted to be inserted to variably position the shaft to determine the nature of the color printing. a pivoted plate in which said openings are formed, and a spring normally holding said' plate in one positiomthereby detaining the shaft at a given position.

6. In a typewriting machine having pol chrome printing means, the combination with a linkadapted to vary the color, of a shaft having an endwise movement and adapted to be rocked to shift the color-controlling link, a spring normally holding said shaft at one end of its endwise movement, a hub t, a pivoted plate having a series of openings in which said hub is adapted to be inserted to variably position the shaft to determinethe nature of the color printing, a' spring normally holding said plate in one position, thereby detaining the shaft at a given position, a lug on said plate, and a bracket relatively to which said plate can swin comprising an opening adapted to limit the play of said lug.

7. in a typewriting machine having polychrome printing means, the combination with a link adapted to vary the color, of a shaft having an endwise movement and adapted to be rocked to shift the color-controlling link, a spring normall holding said shaft at one end of its endwise move ment, a hub on said shaft, a pivoted plate havin a series of ooenlnos in which said.

ptedfto be inserted to variably position the shaft to determine the nature of the color printing, a spring normally holding said plate in one position, thereby detaining the shaft at a given position, a lug on said plate, and a bracket relatively to which said plate can swing comprising an opening adapted to limit the play of said lug, said bracket also comprising a second. opening adapted to limit the movement of the shaft.

8. In a typewriting machine having polychrome printing means, the combination with a link adapted to vary the color, of a shaft adapted to variably position the colorcontrolling link, a bracket in which said shaft is loosely journaled, a fork on said shaft at a point remote from said bracket, a fixed pin engaged by said fork, and a' finger-piece for moving the shaft transversely of'its axis and relatively to said pin to rock the shaft,

9. In a typewriting machine having polychrome printing means, the combination with a link adapted to vary the color, of a shaft adapted to variably position the color-controlling link, a bracket in which said shaft is loosely journaled, a fork on said shaft at a point remote from said bracket, a fixed pin'engaged by said fork, a fingenpiece for moving the shaft transversely of its axis and relatively to said pin to rock the shaft, :1 plate comprising an opening adapted to de tain the shaft, and a spring for holding said shaft in said opening.

10; In a typewriting machine having polychrome printing means, the combination with a'link adapted to vary the colon of a shaft adapted to variably position the color-controlling link, a bracket in which said shaft is looselyjournaled, a fork on said shaft at a point remote from said bracket, a fixed pin engaged by said fork, a finger-piece for inoving the shaft transversely of its axis and relatively to said pin to rock the shaft, a pivoted plate comprising a plurality of openings adapted to detain said shaft, a spring normally holding the shaft in any opening, and a spring for holcing said plate at a given, position.

11. In a typewriting machine having polychrome printing means, the combination with a link adapted to vary the color, of a shaft adapted to be moved transversely to rock it to shift the color-controlling link, a spring normally holding said shaft, but adapted to permit it to be moved endwise, and a plate comprising a series of openings adapted to hold the shaft when drawn thereinto by the spring.

12. In a typewriting machine having polychrome printing means, the combination with a link adapted to vary the color, of a pivoted plate comprisinga series of opencolor, means for. automatically returning ings adapted to detain said shaft when seated therein by said spring, a'spring holding said pivoted plate at a given position, and a lug limiting the throw of said pivoted plate.

13. polychrome printing means, the combination with a link adapted to vary the color, of a shaft adapted to be moved transversely to [rock it to shift the color-controlling link, a

said pivoted plate extending through said opening to hold the plate in the neighborhood of the bracket and to limit itsthrow.

'14:. In a typewriting machine having polychrome printing means, the combination with a link adapted to vary the color, of a shaft adapted to be moved transversely to rock it to shift the color-controlling link, a

spring normally holding said shaft, but

adapted to permit it to be moved endw'ise,'a pivoted plate comprising a series of openings adapted to detain said shaft when seated therein by said spring, a spring holding said pivoted plate at a given position, a bracket over which said pivoted plate moves and comprising an opening, and a lug in said pivoted plate extending through said opening to hold the plate in the neighborhood of the bracket and p to limit its throw, said bracket also comprising an opening adapted toilimit the transverse movement of the shaft.

315, In a typewriting machine having "ings adapted to detain said shaft when seated therein by said spring, a spring holding said pivoted plate at a given position, a

bracket over which said pivoted plate moves and comprising an opening, a lug 1n sald' pivoted plateextending through said opening to hold the plate in the neighborhood of the bracket and to limit its throw, said bracket also comprising an opening adapted .-to limit the transverse movement of the shaft, and a washer for holding the plate clear ofthe bracket.

16. In a typewriting machine having polychrome prlntlng means, the combma: tron of means includmg a member movable away from an original position to vary the In a typewriting machine having in control of the finger-piece comprising a 11..

said member to its original position when released for thereby restoring the original color, and means for locking said member away fromits original position. 7 I

17. In a type'writin'g machine having polychrome printing means, the combination of means for varying the color, comprising a member movable to different positions corresponding to different colors,

means including a rock-shaft for moving said member, a finger-piece for rocking the rock-shaft to vary the color, means for antomatlcally returning the rock-shaft to its 'originalposition to restore the original color when the finger-piece is released, and releasable locking means for detaining the rockshaftaway from its original position, whereby the changed color condition will be maintained. 4 g 7 18. In a typewriting machine having polychrome printing means, the combination of means for varying the color, including a fingenpiece movable to a plurality of different positions, means for automatically returning the finger-piece to its original p0 sition when released, and releasable locking means for detaining the finger-piece away. from its original position. v r l p 19. In 'a typewriting machine having polychrome printing means, the combination of means for varying the color, including a finger-piece movable toidifferent positions corresponding to different colors, and means releasable lockingcatch carried by the ger-piece, a keeper with which said locking catch may have locking engagement at a plurality of different positions, said keeper being mounted for limited movement in the same direction in which the catch and finger-pieceimove, and a spring for yieldingly maintaining said keeper at one of its limited positions of movement, whereby the fingerpiece may be moved away from its original position to vary the color and may automatically return to such original position when released for thereby restoring the original color,and also whereby the finger-piece may be locked away from its original position.

20, In a typewriting machine having polychrome printing means, thecombination of means for varying the color, comprising a member movable to different positions corresponding to different colors, means including a rock-shaft for moving said member to vary the color, a finger-piece for rocking the rock-shaft, and means incontrol of the finger-piece comprising a releasable locking catch carried by the finger-piece, a keeper vith which said locking catch may have V locking engagement at a plurality of different positions, said keeper beingmounted for limited movement in the same direction in which the catch and finger-piece move,

of means for varylng the color, including a finger-piece movable to difierent positions corresponding to different colors, and means in control of the finger-piece comprising a pivoted keeper-plate mounted for limited movement in the same direction as the tinger-pieoe and provided along a line 0]": its movement with a plurality of catch-receiving openings, a releasable locking catch carried by the finger-piece to have locking engagement in said openings, and a spring for yieldingly maintaining said keeper-plate at one of its limited positions of movement, whereby the keeper-plate and with it the finger-piece will be automatically returned to their original positions when moved away therefrom, but providing for locking the finger-piece away, from its original position when desired.

22. In a typewriting machine having polychrome printing means, the combination of means for varying the color, comprising a member movable todiilerent positions corresponding to diiierent colors, means including a rock-shaft for moving said member tovary the color, a fingerpiece for rocl ing the rock-shaft, and means in control of the fingerpiece comprising a pivoted keeper-plate mounted for limited movement in the same direction as the finger-piece and provided along a line of its movement with a plurality of catch-receiving openings, a releasable locking catch carried by the finger-piece to have locking engagement in said openings, and a spring for yieldingly maintaining said keeper-plate at one of its limited positions of movement, whereby the keeper-plate and with it the finger-piece will be automatically returned to their original positions when moved away therefrom, but providing for'locking the finger-piece away from its original position when desired.

1 WALTER E. BARNARD.

Witnesses:

EDW. A. HAvmi, KATHERINE HAVEE. 

